These pages outline the chart configuration options, and the methods and properties of Highcharts objects.
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Callback that fires while dragging a point. The mouse event is passed in
as parameter. The original data can be accessed from e.origin, and the
new point values can be accessed from e.newPoints. If there is only a
single point being updated, it can be accessed from e.newPoint for
simplicity, and its ID can be accessed from e.newPointId. The this
context is the point being dragged. To stop the default drag action,
return false. See drag and drop options.